EngrExpt (version 0.1-6)

fish: Toxin concentrations in fish by site

Description

Toxin concentrations in fish by site

code

fish2

describe

• site
  a factor with levels E, F, G and H
• toxin
  a numeric vector

References

Peter R. Nelson, Marie Coffin and Karen A. F. Copeland (2003), Introductory Statistics for Engineering Experimentation, Elsevier. (Appendix A)

Examples

str(fish)
dotplot(reorder(site, toxin) ~ toxin, fish, jitter.y = TRUE,
        aspect = 0.3, xlab = "Amount of toxin (mg/kg wet weight)")
str(fish2)
dotplot(reorder(site, toxin) ~ toxin, fish2, jitter.y = TRUE,
        aspect = 0.3, xlab = "Amount of toxin (mg/kg wet weight)")